docs: Update documentation and Doxygen documentation generation
diff --git a/utils/tracers/ipv4-seqs-app-tracer.h b/utils/tracers/ipv4-seqs-app-tracer.h
index 5baa9f5..5a64a5a 100644
--- a/utils/tracers/ipv4-seqs-app-tracer.h
+++ b/utils/tracers/ipv4-seqs-app-tracer.h
@@ -27,6 +27,10 @@
 
 namespace ns3 {
 
+/**
+ * @ingroup ndn-tracers
+ * @brief Helper to track application-level sequence numbers (approximated from TCP ACKs)
+ */
 class Ipv4SeqsAppTracer : public Ipv4AppTracer
 {
 public: